EPA Air · stack tests by county and year
Air-emissions stack tests in Carbon County, Wyoming, 2025
- 71Stack tests
A stack test measures what a source actually emits, at the stack, against the limit in its permit. Each row below is one stack test recorded against a source in Carbon County, Wyoming during 2025. A facility can appear several times: this is the year’s record of what happened, not a list of places. The sources themselves are on the Carbon County facility page.
Carbon County, Wyoming, 2025
Air-emissions stack tests in Carbon County, other years
Air-emissions stack tests recorded in Carbon County, Wyoming, 2025
| Date | Facility | Kind | Agency |
|---|---|---|---|
| 2025-12-01 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-11-26 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-11-26 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-11-24 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-11-20 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-11-19 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-11-19 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-09-24 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2025-09-24 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2025-09-24 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2025-09-24 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2025-09-17 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-09-16 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-09-16 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-08-21 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-08-21 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-08-20 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-08-20 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-07-30 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-07-30 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-07-30 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2025-07-30 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2025-07-30 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2025-07-30 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2025-07-29 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-07-29 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-07-28 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-07-28 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-07-15 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2025-07-15 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2025-06-09 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2025-06-09 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2025-06-06 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-06-05 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-06-05 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-05-21 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2025-05-21 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2025-05-20 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2025-05-20 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2025-05-20 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2025-05-20 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2025-05-20 | ECHO SPRINGS GAS PLANT (WILLIAMS FIELD SERVICES) | Pass | State |
| 2025-05-13 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2025-05-13 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2025-05-13 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2025-05-13 | BAGGS MAINLINE/BLUE GAP COMPRESSOR STATION (CROWHEART ENERGY, LLC) | Pass | State |
| 2025-05-12 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-05-12 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-05-12 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-05-12 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-04-29 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-04-29 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-04-29 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-04-29 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-04-25 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-04-25 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-04-25 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-04-17 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-04-17 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-04-17 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-03-06 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-03-06 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-03-06 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-03-06 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-03-06 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-03-06 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-03-06 | DOTY MOUNTAIN COMPRESSOR STATION (US REALM VENTURES) | Pass | State |
| 2025-02-19 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-02-12 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-02-11 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
| 2025-02-11 | HF SINCLAIR PARCO REFINING LLC — high-priority violation on file | Pass | State |
Dates as filed by the agency that recorded the stack test. Figures from EPA’s ICIS-AIR download.